Rockwell Automation 20D PowerFlex 700S with Phase I Control Reference Manual - Manual (Page 138)

138 Rockwell Automation Publication PFLEX-RM002D-EN-E - August 2013
Chapter 1 Detail Drive Configuration and Operation
Isolated with differential transmitter Output (Line Drive). The encoder inputs
can accept 5V DC or 12V DC. There is a 12V DC supply on the drive that can
be used to supply power for the encoders. An external 5VDC power supply is
required when the encoder requires a 5V DC supply.
An encoder offers the best performance for both speed and torque regulation
applications. Encoder feedback is required for applications with high bandwidth
response, tight speed regulation, torque regulation of (+/- 2%) or when the
motor is required to operate at less than 1/100th its base speed.
[Encoderx PPR] sets the pulse per revolution rating of the encoder. This
parameter has a range from 10 to 20000 PPR.